| Klamath Falls to Cascais | 5,420.12 mi (8,722.84 km) |
| Klamath Falls to Castelo Branco | 5,435.71 mi (8,747.92 km) |
| Klamath Falls to Castro Daire | 5,365.83 mi (8,635.48 km) |
| Klamath Falls to Celorico de Basto | 5,339.39 mi (8,592.91 km) |
| Klamath Falls to Chamusca | 5,422.80 mi (8,727.16 km) |
| Klamath Falls to Chaves | 5,340.54 mi (8,594.78 km) |
| Klamath Falls to Cinfaes | 5,348.65 mi (8,607.82 km) |
| Klamath Falls to Coimbra | 5,382.01 mi (8,661.51 km) |
| Klamath Falls to Condeixa-a-Nova | 5,384.09 mi (8,664.86 km) |
| Klamath Falls to Corroios | 5,434.36 mi (8,745.75 km) |
| Klamath Falls to Coruche | 5,440.74 mi (8,756.02 km) |
| Klamath Falls to Costa de Caparica | 5,429.68 mi (8,738.23 km) |
| Klamath Falls to Covilha | 5,412.34 mi (8,710.32 km) |
| Klamath Falls to Eiras | 5,380.66 mi (8,659.34 km) |
| Klamath Falls to Elvas | 5,496.27 mi (8,845.39 km) |
